Grate



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G. KAMP,

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GRATE- Patented Feb. 7,1882.

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GRATB. No. 253,293. Patented Peb. 7,1882.

rrE STATES PATENT EEIGE.

GEORGE KAMP, OE orrori, NEW YORK.

GRATE.

SPECIFICATION forming part of Letters Patent No. 253,293, dated February '7, 1882.

Application filedJune10,18S1. (Model.)

To all whom it may concern:

Be it known that I, GEORGE KAMP, a citizen of the United States, residing at Utica, in the county of Oneida and State of New York, have invented certain new and usefulIm provements in Grates; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures ofreference marked thereon, which form a part of this specification.

Figure l represents a top plan view of my improved grate in position in a stove or furnace. rlhe drawings show a portion of the upper oscillating grate broken away to show the anti-friction bearings or rollers upon which said upper grate rests. Fig. 2 is a diametrical section from front to rear of Figl. Fig. 3 represents a detached view, in perspective, of the rear hinge of the lower grate. Fig. 4 is a detached view, in perspective, of the anti-friction support of the upper grate. Fig. 5 is a detached view, showing the hook that supports the forward part of the lower grate. Fig. 6 is a transverse section taken through one of the antifriction supports. Fig. 7 is a plan view,

'showing more perfectly the lower grate and its connections.

Similar letters of reference in the several drawings denote similar parts.

My invention has for its object the provision of a simple and easily-operated two-part grate for stoves and furnaces, whereby ashes, cinders, &c., resulting from the combustion of the various kinds of fuel shall be quickly and thoroughly removed from the' mass of burning material within such stoves or furnaces 5 and to the accomplishment of the above end it consists in a two-part grate the upper section of which has a motion around its own center, which is coincidentwith the center ofthe grate as a whole, while the center of motion of the lower or oscillating section is at the rear of the grate, and in the means whereby said motions are imparted to the grates, substantially as hereinafter set forth and described.

It also consists in means whereby to lessen the friction of parts while the grate is being operated, as hereinafter described.

Referring to the drawings, A represents the base of an ordinary stove or furnace.

A A' A represent bearings orsnpports for the upper oscillating grate, B. The bearings A are preferably three in number, cast with or otherwise secured to the base A, and project ing inwardly from the same, as shown. The inner or free ends of the bearings A are provided with recesses a to receive and hold rollers or balls a. The sides a2 a3 of said recesses are respectively convex and concave, thus conforming to the outer surface of a flange, b, which projects downwardly from the under surface ofthe grateB. Suitable openings,a4 a5, are provided at the'bottom and at each side of the recesses a for the escape of such ashes or cinders as may fall into said recesses. Openings a6 are also provided between the sides c3 of the recesses and the sides ofthe stove for a similar purpose.

The upper oscillating grate consistsof an annular part, B, concave upon its upper side, as shown in Fig. 2. The lower surface of the ring B is provided at each side with flanges b b', the inner harige, b, being somewhat deeper than the outer flange, b', and the outer surface thereof bearing against the side a2 of the recess a,as above described, thus keeping the ring B in proper position at all times. The grooved portion b2 of the ring B rests upon the rollers or balls a', and therebylessens greatly the friction of parts when the said ring is oscillated, as will be readily understood. Short radial arm sI or lingers b3 b4 project from the outer and inner surfaces of the ring B, the latter, b4, of which are longer than the former, and terminate near the upper surface of the lower gra-te, C, as shown.

Attached to and projecting outwardly from the ring B, and at the front thereof, is a handle, B', whereby said ring is operated.

Extending downwardly from the han dleB, and near its juncture with the ring B, is a stud, 115,-the lower portion ofwhich terminates in a hook, 11G, the purpose of which will be hereinafter described.

The body of the lower grate, C, is similar in form and construction to those in common use, consisting of a ring, c, having straight ribs c', V-shaped in cross-section, extending from front to rear thereof. The grate C is provided ICO at its rear side with a bifurcated lug, o2, iu which, at o, is pivoted a tongue, c4, provided at its free outer end with a downwardly-projecting stud, c5, that enters a suitable aperture, (t7, in a lug, A2, projecting inwardly from the base A. The pivotal point o3 in the lug o2 allows up-and-down motion to the front or forward part of the lower grate, while the stud c5, pivoted in the lugA2,allows lateral motion to said forward portion of the grate, as will be readily understood.

Projecting from theforward part of the grate C is a downwardly and outwardly curved arm, C', the outer free end otwhichis provided upon its under surface with a shouldered portion, a, whereby the arm is prevented from slipping out ofthe hook b, in which said arm C normally rests.

To operate the grate the handle B is moved to and fro, such movement causing the upper part, B, of the grate to oscillate upon its bearings A', while the lower grate, being attached at its rear end to the base of the stove and at its forward end to the said upper part, B, will be caused bysuch movement of the handle B to move to and fro laterally,

vthe result of which compound movements will be to thoroughly si't the ashes, cinders, Ste., through the openings in the grate and into the ash-pan, as will be readily understood. To dump the contents of the stove, raise the arm out of thc hook bG, thus allowing said grate C to drop.

Havingl thus described my invention, what Iclaim, and desire to secure by Letters Patent, 1S

l. A two-part grate consisting of an upper section having a motion around its own center coincident with the center of the grate as a whole, and a lower section having its center of motion at the rear of the grate, substantially as and for the purpose set forth.

2. 'In a two-part grate, the upper part consisting of an annular section, B, concave upon its upper side, and provided with radial fingers b3b4,ianges b b', and handle B,having depending stud b5 and hook b, substantially as described.

3. In a two-part'grate, the combination of the gra-te C, having arm C and bifurcated lug c2, with the tongue c4, pivoted at its forward end in said lug c2, and provided at its rear end with a downwardly-projecting stud, o5, whereby to pivot said tongue to the lugA2 upon the base of the stove, substantially as described, for the purpose specified.

4. In a two-part grate, the combination of the lug` A2, tongue c4, and bifurcated lug l?, attached to the grate C by pivot c, whereby the said grate is capable ot' being moved up or down or from side to side, substantially as described.

5. In atwo-partgrate,thecombination of the upper rotary section, B, provided with radial fingers bf b4, flanges b b', handle B', having depending stud b5 and hook b, with the lower laterally-moving grate, U, provided with bifurcated lug c2 and curved arm C', substantially as described.

6. In a two-part grate, the supports A', hav ing their outer ends provided with recesses a to receive and vhold friction rollers or balls a', and provided also with suitable openings, a4 a5, for the escape ot' ashes, cinders, &c., in combination with the lower grooved surface, b2, of the annular section B, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

elio. KAMP.

Witnesses:

ROBERT I?, TAYLOR., B. S. FnIsBIE. 

